Improve previewFont-to-spacecenter

* make only a couple of glyphs, take input from a string.
* use glyphNames and decomposeComponents

Scripting examples/db_currentDesignspace_grid.py

@@ -26,10 +26,10 @@ def grid(ds, glyphName, horizontalAxis, verticalAxis, columns, rows):
     return items
 
 # parameters 
-glyphName = "R"
+glyphName = "S"
 horizontalAxis = "width"
 verticalAxis = "weight"
-columns = 
+columns = 7
 
 rows = 9
 margin = 100

Scripting examples/db_simpleGlyphPreview.py

@@ -1,12 +1,12 @@
 #drawbot
 d = CurrentDesignspace()
-previewLoc = d.randomLocation()
-d.setPreviewLocation(previewLoc)
-print(dir(d))
+if d is not None:
+    previewLoc = d.randomLocation()
+    d.setPreviewLocation(previewLoc)
 
-loc = dict(weight=800, width=800)
-r = d.makeOneGlyph("R", loc)
+    loc = dict(weight=800, width=800)
+    r = d.makeOneGlyph("R", loc)
 
-translate(100, 100)
-scale(0.8)
-drawGlyph(r)
+    translate(100, 100)
+    scale(0.8)
+    drawGlyph(r)

Scripting examples/rf_previewFont_to_spacecenter.py

@@ -1,9 +1,11 @@
 from fontTools.designspaceLib import InstanceDescriptor
-from mojo.UI import CurrentSpaceCenter, OpenSpaceCenter
+from mojo.UI import CurrentSpaceCenter, OpenSpaceCenter, splitText
 
 # Scripting with live designspaces
 # demo [email protected] 12.12.2023
 
+proofText = "Designspace & UFOProcessor"
+
 # have a desigspace open in DSE2
 ds = CurrentDesignspace()
 
@@ -23,6 +25,8 @@
 # get the default font
 # note we ask for the default of a specific discrete location here
 defaultFont = ds.findDefaultFont(discreteLocation=discretePart)
+glyphNames = splitText(proofText, defaultFont.asFontParts().getCharacterMapping())
+print("glyphNames", glyphNames)
 
 # make an "instance descriptor" object to specify what we want to see
 preview = InstanceDescriptor()
@@ -32,7 +36,7 @@
 # now we're asking the designspace to make a font object with these specs
 # This makes the whole font. If you're just looking at a couple of characters
 # there are faster ways to do that. 
-previewFont = ds.makeInstance(preview).asFontParts()
+previewFont = ds.makeInstance(preview, glyphNames=glyphNames, decomposeComponents=True).asFontParts()
 
 # finally, we give the resulting font to the space center.
 # have a spacecenter open
@@ -41,7 +45,9 @@
     sp = OpenSpaceCenter(previewFont)
 
 sp.setFont(previewFont)
-sp.setRaw(f'HHOHOO \n {defaultFont.info.styleName}')
+spString = "/" + "/".join(glyphNames)
+print('spString', spString)
+sp.setRaw(spString)
 
 # optionally, open the font window
 #previewFont.openInterface()